21132234343102 has 4 divisors (see below), whose sum is σ = 31698351514656. Its totient is φ = 10566117171550.

The previous prime is 21132234343081. The next prime is 21132234343109. The reversal of 21132234343102 is 20134343223112.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21132234343109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5283058585774 + ... + 5283058585777.

It is an arithmetic number, because the mean of its divisors is an integer number (7924587878664).

Almost surely, 2^{21132234343102} is an apocalyptic number.

21132234343102 is a deficient number, since it is larger than the sum of its proper divisors (10566117171554).

21132234343102 is a wasteful number, since it uses less digits than its factorization.

21132234343102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10566117171553.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 21132234343102 its reverse (20134343223112), we get a palindrome (41266577566214).

The spelling of 21132234343102 in words is "twenty-one trillion, one hundred thirty-two billion, two hundred thirty-four million, three hundred forty-three thousand, one hundred two".